1640506857024 has 168 divisors, whose sum is σ = 5268691528128. Its totient is φ = 448337218560.

The previous prime is 1640506857019. The next prime is 1640506857091. The reversal of 1640506857024 is 4207586050461.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3574347 + ... + 4007114.

It is an arithmetic number, because the mean of its divisors is an integer number (31361259096).

Almost surely, 2^{1640506857024} is an apocalyptic number.

1640506857024 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1640506857024 is an abundant number, since it is smaller than the sum of its proper divisors (3628184671104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1640506857024 is a wasteful number, since it uses less digits than its factorization.

1640506857024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7581513 (or 7581496 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 48.

The spelling of 1640506857024 in words is "one trillion, six hundred forty billion, five hundred six million, eight hundred fifty-seven thousand, twenty-four".